Question

The root of the equation 7(x-1)=21 is (a) 1 (b) 2 (c) 3 (d) 4*
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Answer 1

Answer:

$7(x - 1) = 21 \\ \\ = > 7x - 7 = 21 \\ \\ = > 7x = 21 + 7 \\ \\ = > 7x = 28 \\ \\ = > x = \frac{28}{7} \\ \\ = > x = 4$

So correct option is (d) = 4

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Answer 2

Answer:

4 is the correct answer

Step-by-step explanation:

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